Printing

Printing is a way to make many copies of text and images using a special form or template. It started a very long time ago, even before paper was used. One of the earliest examples was making ink rubbings from texts carved on stone tablets.

Later, people began using wood blocks to print images and words on paper. This method became more advanced when a man named Bi Sheng invented movable type around the year 1040. Movable type made it easier to change the letters and words for different pages.

The biggest change came when Johannes Gutenberg invented the printing press in the 15th century. This invention helped spread ideas quickly during the Renaissance and the Scientific Revolution. Because of printing, more people could learn and share knowledge, which changed the world and helped create today’s economy based on information and learning.

History

Main article: History of printing

Woodblock printing

Main article: Woodblock printing

Woodblock printing is a way to make text and pictures by using a block of wood with the design carved into it. This method was used a lot in East Asia. It started in China a long time ago, first on clothes and then on paper.

In East Asia

Main article: History of printing in East Asia

The earliest examples of printing in China go back to the 600s. A special kind of printing called mechanical woodblock printing began in the 700s during the Tang dynasty. Japan printed many copies of a Buddhist book around the year 770. In Korea, a printed book from the 700s was found in 1966.

By the 800s, printing on paper became common. The first complete printed book we still have is from the year 868. By the 900s, hundreds of thousands of copies of books were printed. Skilled printers could make up to 2,000 pages a day.

Printing moved to Korea and Japan, and also to places like Turpan and Vietnam. It later reached Persia, Russia, and then Europe around 1400. It was used for art and playing cards.

In the Islamic World

Main article: Tarsh

From 900 to 1444, people in the Islamic world used wooden and tin blocks to print. In Muslim Spain, this was the first time block printing was used in Europe. It was mainly used by street performers to make charms and special items. These items looked like they were handwritten. The printing was also used for important things like tax receipts and money.

After 1436, block printing stopped in the Islamic world. But some people moving to Europe might have helped bring this printing method there.

In Europe

Block printing came to Europe around 1300 for printing on cloth. When paper became easy to get around 1400, this method was used for small pictures and playing cards on paper. These prints were made in very large numbers starting around 1425.

Around the mid-1400s, books made with wood blocks instead of separate letters became popular. These were cheaper than handwritten books. Two famous ones were the Ars moriendi and the Biblia pauperum.

Movable-type printing

Main article: Movable type

Movable type is a way of printing using small pieces of metal that can be arranged to form words. This made printing easier and faster than copying by hand or using wood blocks.

Around 1040, a man named Bi Sheng in China made the first movable type from clay. Later, Wang Zhen made a stronger type from wood. In the 1100s, China started using copper movable type for printing money. Korea began using movable type around 1230, and in 1377, they printed a book called the Jikji, the oldest known metal printed book.

The printing press

Around 1450, Johannes Gutenberg created the first movable-type printing system in Europe. He made better type, used a special press, and created better ink and paper. Gutenberg’s printing helped make books faster and cheaper to produce. His Gutenberg Bible showed how good this new way of printing was. The printing press quickly spread across Europe and then around the world.

In 1651, a writer named Thomas Hobbes talked about printing. Later, in 1997, a magazine called Time Life said Gutenberg’s printing was one of the most important inventions ever.

Rotary printing press

Main article: Rotary printing press

The steam-powered rotary printing press was invented in 1843 in the United States by Richard M. Hoe. This press could print millions of copies a day. It used a round design to print on long rolls of paper. Later, William Bullock improved this press. Today, there are different kinds of rotary printing presses still used.

Printing capacity

The table lists the maximum number of pages which various press designs could print per hour.

Main article: History of printing

Conventional printing technology

Printing makes copies of text and images by using a special design or template. Before printing starts, the information is prepared, and the printing areas are separated from the non-printing areas.

There are four main types of printing:

1. Planographics, where the printing and non-printing areas are on the same surface. Examples include offset lithography and collotype.
2. Relief printing, where the printing areas are raised above the surface. Examples are flexography and letterpress.
3. Intaglio, where the printing areas are etched below the surface. Examples are steel die engraving, gravure, and etching.
4. Stencil printing, where ink passes through fine mesh screens. Examples are screen printing and stencil duplicator.

Crop marks

Crop marks help show where the printed image ends so that extra paper can be cut away after printing. The part that is cut off is called bleed.

Letterpress

Main article: Letterpress printing

Letterpress printing is a type of relief printing. Small blocks of letters are placed into a press, inked, and pressed against paper to make the letters appear on the paper. This method was invented by Johannes Gutenberg in the mid-1400s and was commonly used for books until the mid-1900s.

Offset

Main article: Offset press

Offset printing is a common modern method. An image on a printing plate is inked and moved to a rubber blanket, which then transfers the image to paper. This process uses a flat plate and relies on the idea that oil and water do not mix.

Gravure

Main article: Rotogravure

Gravure printing is an intaglio method where small depressions in a plate hold ink. A roller presses paper onto the plate to pick up the ink. Gravure is used for high-quality printing such as magazines, packaging, and wallpaper.

Flexography

Flexography is a type of relief printing that uses special plates made from light-sensitive materials. It is often used for printing on flexible materials like packaging and labels.

Other printing techniques

Other printing methods include:

• Dye-sublimation printer
• Inkjet for small print jobs and various materials
• Laser printing for office use and documents
• Pad printing for printing on rounded surfaces
• Relief print for catalogues
• Screen printing for many uses, from shirts to tiles
• Intaglio for important documents like money
• Thermal printing for labels and tags

Impact of German movable type printing press

Main article: History of printing

When Gutenberg created the first printing press, it changed how books were made in Europe. Before this, only a few million books existed. But after the printing press, the number of books grew to about one billion in just four centuries.

Printing helped spread knowledge to more people. It allowed everyone to learn about important ideas and rights. In some places, like the Ottoman Empire, printing was not allowed for religious books, but other types of books could still be made. Printing changed reading habits, letting people read alone or compare different ideas. It also created new jobs, like printers and booksellers, and changed how universities taught and learned.

Comparison of printing methods

Digital printing

Main article: Digital printing

By 2005, digital printing made up about 9% of all the pages printed each year worldwide. This kind of printing can be done at home, in offices, or in special places for making designs. It comes in two main types: small format, which is like the paper used in offices, and wide format, which is much bigger and used for making big designs.

There are many ways to do digital printing, such as using special paper that changes color with heat, spraying tiny drops of ink, or using electric charges to move ink onto paper. Some common methods include blueprint, daisy wheel, dot-matrix, line printing, heat transfer, inkjet, electrophotography, laser, and solid ink printing. Each has its own special way of putting words and pictures onto paper.

3D printing

Main article: 3D printing

3D printing is a special way to make things by using computer designs. It works by adding thin layers of material on top of each other until the object is complete. This method is also called additive manufacturing or rapid prototyping.

In the 1980s, people mostly used 3D printing to make models of things. But now, it can be used to make real products in factories. One big plus of 3D printing is that it can create very complicated shapes that are hard or impossible to make by hand. A common way to do 3D printing is called fused deposition modeling, where a thin string of warm plastic is slowly built up layer by layer.